Distinctive feature: These hook magnets can be used to hang up objects. You can unscrew the hook. We also carry discreet white hook magnets.
Principle: The strong neodymium magnets are embedded in a steel pot. The steel pot increases the adhesive force of the magnet on direct contact with a thick iron surface. If there is no direct contact with the counterpart, or if the steel plate is thin, painted or rough, you can strain it much less.
Shear force: The indicated adhesive force was measured perpendicular to the surface to which the magnet should stick. It takes a lot less strength to move the magnet sideways. Therefore, if you attach a pot magnet on the wall (for instance to hang up clothing), the magnet will slide down much faster than when you attach it on the ceiling.
Rust: These magnets are not rust-free and therefore intended for dry indoor use.